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Spadix (botany)
In botany, a spadix ( ; : spadices , ) is a type of inflorescence having small flowers borne on a fleshy stem. Spadices are typical of the family Araceae, the arums or aroids. The spadix is typically surrounded by a leaf-like curved bract known as a spathe. For example, the "flower" of the well known ''Anthurium'' spp. is a typical spadix with a large colorful spathe. In this type of inflorescence, the Peduncle (botany), peduncle is thick, long and fleshy, having small sessile unisexual flowers covered with one or more large green or colourful Bract, bracts (spathe). Spadix inflorescence is found in colocasia, Araceae, aroids, maize and Arecaceae, palms (palms have compound spadix). Plant sexuality, Monoecious aroids have unisexual male and female flowers on the same individual and the spadix is usually organized with female flowers towards the bottom and male flowers towards the top. Typically, the Stigma (botany), stigmas are no longer receptive when pollen is released which ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diagram Of Arum Maculatum
A diagram is a symbolic Depiction, representation of information using Visualization (graphics), visualization techniques. Diagrams have been used since prehistoric times on Cave painting, walls of caves, but became more prevalent during the Age of Enlightenment, Enlightenment. Sometimes, the technique uses a Three-dimensional space, three-dimensional visualization which is then graphical projection, projected onto a two-dimensional surface. The word ''graphics, graph'' is sometimes used as a synonym for diagram. Overview The term "diagram" in its commonly used sense can have a general or specific meaning: * ''visual information device'' : Like the term "illustration", "diagram" is used as a collective term standing for the whole class of technical genres, including graphics, graphs, technical drawings and tables. * ''specific kind of visual display'' : This is the genre that shows qualitative data with shapes that are connected by lines, arrows, or other visual links. In scie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stigma (botany)
The stigma (: stigmas or stigmata) is the receptive tip of a Gynoecium#Carpels, carpel, or of several fused carpels, in the gynoecium of a flower. Description The stigma, together with the Style (botany), style and ovary (botany), ovary (typically called the stigma-style-ovary system) comprises the pistil, which is part of the gynoecium or female reproductive organ of a plant. The stigma itself forms the distal portion of the style, or stylodia, and is composed of , the cells of which are receptive to pollen. These may be restricted to the apex of the style or, especially in wind pollinated species, cover a wide surface. The stigma receives pollen and it is on the stigma that the pollen grain germination, germinates. Often sticky, the stigma is adapted in various ways to catch and trap pollen with various hairs, flaps, or sculpturings. The pollen may be captured from the air (wind-borne pollen, anemophily), from visiting insects or other animals (Pollination syndrome#Biotic, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Allegheny National Forest
The Allegheny National Forest is a National Forest in Northwestern Pennsylvania, about 100 miles northeast of Pittsburgh. The forest covers of land. Within the forest is Kinzua Dam, which impounds the Allegheny River to form Allegheny Reservoir. The administrative headquarters for the Allegheny National Forest is in Warren. The Allegheny National Forest has two ranger stations, one in Marienville, Forest County, and the other in Bradford, McKean County. The Allegheny National Forest lies in the heart of Pennsylvania's oil and gas region. It is only from the site of the first commercial oil well in the United States at Titusville, Pennsylvania. In 1981, about 17 percent of the state's crude oil production came from mineral rights owned by private individuals within the Forest boundary. History before 1923 Today the Allegheny Plateau is known for black cherry, maple and other hardwoods, but two hundred years ago these species were less numerous. Today's forest is largel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arisaema Triphyllum
''Arisaema triphyllum'', the Jack-in-the-pulpit, is a species of flowering plant in the arum family Araceae. It is a member of the ''Arisaema triphyllum'' complex, a group of four or five closely related taxa in eastern North America. The specific name ''triphyllum'' means "three-leaved", a characteristic feature of the species, which is also referred to as Indian turnip, bog onion, and brown dragon. Used without qualification, the name ''Arisaema triphyllum'' is ambiguous. For clarity, the qualified name ''Arisaema triphyllum'' sensu stricto (abbreviated s.s.) refers to the species while ''Arisaema triphyllum'' sensu lato refers to the species complex. The latter includes the species (''Arisaema triphyllum'') among its members. ''Arisaema triphyllum'' sensu lato is wide-ranging across eastern North America, from Nova Scotia to Manitoba in eastern Canada, and from Texas to Florida in the southern United States. It is common throughout most of its range. Description The ''Ar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anthurium Andraeanum
''Anthurium andraeanum'' is a flowering plant species in the family Araceae that is native to Colombia and Ecuador. It is a winner of the Royal Horticultural Society's Award of Garden Merit. Names Common names for plants in the genus ''Anthurium'' include flamingo flower, tailflower, painter's palette, oilcloth flower, and laceleaf.''Anthurium'' spp. Poisonous Plants of North Carolina. North Carolina State University. Its name comes from the Greek words ''anthos'', meaning flower, and ''oura'', meaning a tail, referring to the spadix.Andraeanum." Missouri Botanical Garden [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Botanic Garden
The United States Botanic Garden (USBG) is a botanical garden on the grounds of the United States Capitol in Washington, D.C., near the James A. Garfield Monument. The Botanic Garden is supervised by the United States Congress, Congress through the Architect of the Capitol, who is responsible for maintaining the grounds of the United States Capitol. The USBG is open every day of the year, including federal holidays. The garden is the oldest continually-operating botanic garden in the United States. History The Columbian Institute for the Promotion of Arts and Sciences in Washington, DC first suggested the creation of the Botanic Garden in 1816. In 1820 it was given land by an act of Congress. The land was located west of the Capitol extending from First Street to Third Street between Pennsylvania and Maryland Avenues. The facility ceased to operate in 1837 when the society stopped holding meetings. However it was re-instituted in 1842 when the Wilkes expedition of the South ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amorphophallus Titanum
The titan arum (''Amorphophallus titanum'') is a flowering plant in the family Araceae. It has a large unbranched inflorescence; a tall single leaf, branched like a tree; and a heavy tuber which enables the plant to produce the inflorescence. ''A. titanum'' is endemic to rainforests on the Indonesian island of Sumatra. Its flower blooms infrequently and only for a short period, and gives off a powerful scent of rotting flesh which attracts pollinators. As a consequence, it is characterized as a carrion flower, earning it the names corpse flower or corpse plant. The titan arum was first brought to flower in cultivation at the Royal Botanic Gardens, Kew in 1889. Since then it has flowered at many botanic gardens. It remains difficult for amateurs to cultivate, but one flowered at a high school in California in 2011. Flowerings can attract crowds of thousands of visitors, and in the 21st century also thousands on Internet live streaming. Etymology ''A. titanum'' derives its n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spathiphyllum
''Spathiphyllum'' is a genus of about 60 species of monocotyledonous flowering plants in the family Araceae, native to tropical regions of the Americas and southeastern Asia. Certain species of ''Spathiphyllum'' are commonly known as spath or peace lilies. They are evergreen herbaceous perennial plants with large leaves long and broad. The flowers are produced in a spadix, surrounded by a long, white, yellowish, or greenish spathe. The plant does not need large amounts of light or water to survive. It is most often grown as a houseplant. However, it can withstand the elements well enough to thrive when planted outdoors in hot and humid situations. Description ''Spathiphyllum'' is a genus of herbaceous evergreen plants with dark green foliage that can reach in height. Rosettes of glossy, dark green leaves emerge directly from a low-lying or underground creeping stem. The leaves are elliptical or lanceolate, long and wide. They are supported on shoots ( petioles) of short ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Xanthosoma Sagittifolium
''Xanthosoma sagittifolium'', or tannia, is a tropical flowering plant from the family Araceae. It produces an edible, starchy corm. ''X. sagittifolium'' is native to tropical America where it has been first cultivated. Around the 19th century, the plant spread to Southeast Asia and Africa and has been cultivated there ever since. ''X. sagittifolium'' is often confused with the related plant ''Colocasia esculenta'' (Taro), which looks very similar and is also used in a similar way. Both plants are often collectively named Cocoyam. Common names for ''X. sagittifolium'' include tannia, new cocoyam, arrowleaf elephant's ear, American taro, , , and . Cultivars with purple stems or leaves are also variously called blue taro, purplestem taro, purplestem tannia, and purple elephant's ear. Tannia is among the world’s most important tuber crops and feeds 400 million people worldwide. There are multiple varieties, the two most common being the red flesh and the white flesh variety. They ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Odorant
An aroma compound, also known as an odorant, aroma, fragrance, flavoring or flavor, is a chemical compound that has a smell or odor. For an individual chemical or class of chemical compounds to impart a smell or fragrance, it must be sufficiently Volatility (chemistry), volatile for transmission via the air to the olfactory system in the upper part of the nose. As examples, various fragrant fruits have diverse aroma compounds, particularly strawberries which are plant breeding, commercially cultivated to have appealing aromas, and contain several hundred aroma compounds. Generally, molecules meeting this specification have molecular weights of less than 310. Flavors affect both the sense of taste and Olfaction, smell, whereas fragrances affect only smell. Flavors tend to be naturally occurring, and the term ''fragrances'' may also apply to synthetic compounds, such as those used in cosmetics. Aroma compounds can naturally be found in various foods, such as fruits and their pe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thermogenesis
Thermogenesis is the process of heat production in organisms. It occurs in all warm-blooded animals, and also in a few species of thermogenic plants such as the Eastern skunk cabbage, the Voodoo lily ('' Sauromatum venosum''), and the giant water lilies of the genus '' Victoria''. The lodgepole pine dwarf mistletoe, '' Arceuthobium americanum'', disperses its seeds explosively through thermogenesis. Types Depending on whether or not they are initiated through locomotion and intentional movement of the muscles, thermogenic processes can be classified as one of the following: * Obligatory Thermogenesis: Heat produced from energy expended for vital metabolic processes necessary to sustain an organism. * Exercise activity thermogenesis (EAT) * Non-exercise activity thermogenesis (NEAT): Energy expended for any spontaneous physical activity that is not a structured exercise routine or sports-like exercise. This can include but is not limited to walking, leisure activities, fid ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arum Maculatum
''Arum maculatum'', commonly known as cuckoopint, jack-in-the-pulpit and other names (see common names), is a woodland flowering plant species in the family Araceae. It is native across most of Europe, as well as Eastern Turkey and the Caucasus. Description The leaves of ''A. maculatum'' appear in the spring (April–May in the northern hemisphere, October–November in the southern hemisphere) and are 7 to 20 cm long. These are followed by the flowers borne on a poker-shaped inflorescence called a '' spadix'', which is partially enclosed in a pale green spathe or leaf-like hood. By relative inflorescence height, ''Arum'' species are divided into "cryptic" species, whose inflorescences are borne on a short peduncle amid or below the leaves, and "flag" species, whose inflorescences are above leaf level at the end of long peduncles. ''A. maculatum'' is a cryptic species. The spathe can be up to 25 cm high and the fruiting spike which follows later in the season may be up ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
